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                   The
                      National Human Neural Stem Cell Resource provides neural
                      stem cells harvested from the post-natal, post-mortem,
                      human and animal brain to the research community for stem cell research.
                      Several brain areas as well as cultures from normal and
                      genetically mutant specimens are represented in the Resource. Cells
                      derived from other organ systems are also available.
                       
                  Stem
                      cell research will increase our understanding of the nervous
                      system and may allow us to develop treatments for currently
                      incurable brain diseases and injuries.                    The
                      Resource encourages stem cell research for the study of
                      these neural stem cells as potential transplantable tissue
                      for the repair of injury such as that sustained during
                      traumatic brain injury or stroke, for the repair of pathological
                      processes such as those seen in the neurogenetic diseases
                      Hurler's disease or Leigh's disease, or for repair
                      of neurodegenerative processes such as those seen in Parkinson's
                      or Alzheimer Diseases.   
                      
                      
                    In addition, the stem cells should be used for stem cell
                    research aimed at the detailed study of mechanisms of neural
                    differentiation and transdifferentiation and the genetic
                    and environmental signals that direct the specialization
                    of the cells into particular cell types.  
                      
                    Philip H. Schwartz, Ph.D., Director  
                    [email protected]    |  
                 
				  
				  
				
                   A)
                    A primary culture of proliferating cells showed a high proportion
                    of nestin (red) to GFAP (blue) staining in monolayer culture;
                    co-staining was relatively frequent (10x).   
                  B) Budding neurosphere showed nestin cells (red) at the
                    circumference with a much higher proportion of GFAP (blue)
                    to nestin in the interior of the sphere (10x).   
                  C) Nestin (green) and Sox2 (red) staining in proliferating
                    hNPCs (40x). Arrows show occasional nestin-negative/Sox2-positive
                    cells.   
                  D) Doublecortin (DCX) staining of hNPCs revealed a subpopulation
                    of small, 5 - 10 um diameter, DCX-positive (green) cells
                    against a phase-contrast background (40x).  
				 
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